engleski

Harmful algal bloom monitoring program at the shellfish breading areas through the Eastern Adriatic coast

Harmful algal blooms can cause severe damage in aquaculture, fisheries, and tourism and have major impact on human health through the food web. In 2000, Croatia initiated a monitoring programme of shellfish breeding areas including seawater analysis for the presence of toxic phytoplankton species and shellfish analysis for presence of algal toxins at shellfish tissue. All cases of recorded shellfish toxicity in the eastern Adriatic coast were extremely related to appearance of DSP toxicity, while PSP and ASP toxicity were not recorded in concentration that can impact a human health ever. Species Dinophysis fortii, D. caudata and D. rotundata were the most related with DSP toxicity occurrence. Besides okadaic acid (OA), there are others DSP toxins that caused the DSP toxicity at the Adriatic Sea. ASP toxicity was noticed in Šibenik Bay in 2006, but in concentrations much below of the EU limit for domoic acid (20 mg/kg). The highest concentrations were recorded in February (up to 6, 5 mg/kg) and were associated with intensive bloom of diatom Pseudo-nitzschia spp.

Harmful algal bloom; algal toxins; Adriatic Sea

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